WO2000041917A1 - Procede pour verifier la fonction d'un systeme de commande pour moyens de protection des passagers dans une automobile - Google Patents

Procede pour verifier la fonction d'un systeme de commande pour moyens de protection des passagers dans une automobile Download PDF

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Publication number
WO2000041917A1
WO2000041917A1 PCT/DE2000/000088 DE0000088W WO0041917A1 WO 2000041917 A1 WO2000041917 A1 WO 2000041917A1 DE 0000088 W DE0000088 W DE 0000088W WO 0041917 A1 WO0041917 A1 WO 0041917A1
Authority
WO
WIPO (PCT)
Prior art keywords
acceleration
acceleration sensors
test
sum
approximately
Prior art date
Application number
PCT/DE2000/000088
Other languages
German (de)
English (en)
Inventor
Claus Schmidt
Gerhard Mader
Stefan Hermann
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to KR1020017008848A priority Critical patent/KR20010101502A/ko
Priority to EP00903518A priority patent/EP1149004B1/fr
Priority to DE50005983T priority patent/DE50005983D1/de
Priority to JP2000593505A priority patent/JP2002534699A/ja
Publication of WO2000041917A1 publication Critical patent/WO2000041917A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R21/01332—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value by frequency or waveform analysis
    • B60R21/01338—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value by frequency or waveform analysis using vector analysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01013—Means for detecting collision, impending collision or roll-over
    • B60R2021/01027—Safing sensors

Definitions

  • the invention relates to a method for checking the function of a control arrangement for occupant protection means according to the preamble of patent claim 1.
  • a control arrangement for triggering a restraining device in a motor vehicle in which a sensor device supplies a longitudinal acceleration signal and a lateral acceleration signal. Depending on the longitudinal and the lateral acceleration signal, a trigger signal for the restraint means for front impact protection is generated by a downstream evaluation device of the control arrangement.
  • a control arrangement for triggering a restraint in a motor vehicle is also known from US 4 933 570.
  • a trigger signal for the restraint device is generated as a function of a signal supplied by an acceleration sensor and a switching signal of a mechanical acceleration switch.
  • Such so-called Safmg sensors designed as acceleration switches ensure a
  • Such an acceleration switch in the ignition circuit usually has a low response threshold and thus provides a time window within which a triggering can take place on the basis of an evaluation of the signals supplied by the acceleration sensor.
  • a control arrangement for triggering a restraint in a motor vehicle which has a sensor device with three longitudinal acceleration sensors.
  • the acceleration sensors are arranged in a star shape such that they each have differently oriented sensitivity axes.
  • the signal from the third acceleration sensor is used to check one of the two calculated variables, the direction or the strength of the acceleration acting on the vehicle.
  • the third sensor thus takes over the function of a safing sensor and can thus prevent the restraint from being drawn if the value made available by it deviates significantly from a value previously calculated from the signals of the other two sensors.
  • the object of the invention is to provide a simple method for
  • FIG. 1 shows a symbolically indicated vehicle with a star-shaped arrangement of three acceleration sensors
  • FIG. 2 shows an arrangement with an X-Y acceleration sensor and a further acceleration sensor
  • FIG. 3 shows an alternative sensor alignment of the arrangement according to FIG. 2.
  • FIG. 1 shows a symbolically indicated motor vehicle with an arrangement of a plurality of acceleration sensors 11, 12, 13 for generating acceleration signals in crash situations. These acceleration signals are evaluated by an evaluation device, not shown here, and triggered as a function of the direction and severity of an impact, likewise not shown here, occupant protection devices such as, for example, airbags and belt tensioners.
  • the acceleration sensors In order to be able to check the correct functioning of the acceleration sensors when starting and / or during the operation of the motor vehicle, it is advantageous to be able to subject the acceleration sensors to a so-called self-test.
  • a moderate acceleration in the positive and / or negative sensitivity direction of an acceleration sensor can be simulated, for example by capacitively deflecting the seismic mass of the acceleration sensor by a certain amount.
  • a connected evaluation device can carry out a so-called Safmg evaluation. It then depends on the result of this safety analysis whether a release signal for the release of the occupant protection means can be issued. If the Safmg evaluation detects, for example, that one or more of the acceleration sensors or the downstream signal processing is not functioning correctly, no ignition signal is generated to ignite an airbag.
  • the sum of the weighted output signals of the at least three sensitivity axes of the acceleration sensors must always be zero. This is a criterion for the proper functioning of the acceleration sensors, which is expediently permanently monitored during operation. During a so-called self-test of the control arrangement, this zero-sum formation is now checked and a malfunction is detected if there is a significant deviation from the target values. With the star-shaped arrangement of three identical acceleration sensors 11, 12, 13 according to FIG. 1, weighting of the output signals is not necessary; the sum of all three signals a u , a v , a "is always zero, regardless of the direction of an applied acceleration.
  • the three sensitivity axes u, v, w of the acceleration sensors each enclosing an angle of 120 °, a self-test of the two sensors 12, 13 can be carried out, for example, by that one of the two sensors is m positive, the other m negative direction is deflected.
  • Such a deflection can expediently correspond to an acceleration of ten to fifteen times the value of the acceleration due to gravity (10G ... 15G). If the acceleration sensor 13 is deflected in the direction of its sensitivity axis w with + 10G, it delivers an output signal of
  • a corresponding self-test deflection of the acceleration sensor 12 in the direction of the sensitivity axis v of the strength -10G supplies an output signal from this sensor of
  • the acceleration sensor 11 is not subject to a self-test deflection, so that it outputs an output signal from
  • the negative self-test threshold of a sensor can be doubled, for example. This would result in zero when activating the sensors in the self-test:
  • FIG. 2 shows an alternative arrangement of acceleration sensors for crash detection.
  • An XY misting sensor 14 with two mutually perpendicular sensitivity axes x and y supplies two output signals a x , a y m as a function of the respective acceleration component in the direction of the axes x, y.
  • the sensitivity axis x is arranged parallel to the longitudinal vehicle axis A-A '
  • the sensitivity axis y is accordingly arranged parallel to the transverse vehicle axis BB'.
  • any other arrangement is also possible with an installation position rotated arbitrarily in this plane spanned by vehicle longitudinal axis AA 'and vehicle transverse axis BB'.
  • a further acceleration sensor 13 with a sensitivity axis w rotated by 45 ° within the above-mentioned plane supplies the acceleration signal a w .
  • a self-test to ensure the suction function outlined above can be carried out, for example, by a capacitive deflection of the seismic masses of the acceleration sensors 13, 14. It must be mentioned that in the sketched self-test the weighted output signals are compared to an arbitrarily selected axis direction.
  • the output signals a x , a y , a ", which can each take a positive or negative value, are summed up by the evaluation device connected downstream.
  • the weighted sum of the output signals must result in the value zero if an enable signal is to be generated for the triggering of the occupant protection means.
  • Another criterion for outputting an enable signal is expediently the check whether at least one acceleration signal exceeds a certain threshold value. In this way it can be prevented that an enable signal for the safing function is output even when the vehicle is at a standstill, where the acceleration signals are each zero and thus the sum of the signals is again zero. Rather, the safing function is always blocked as long as the predetermined threshold value is not exceeded by the signal of at least one of the acceleration sensors 11, 12, 13, 14. The safing function is only released when at least one value of an acceleration signal a x , a y , a u , a v , a w exceeds the predetermined threshold value (as a single value or as a time integral).
  • a vector of two signals can also be compared with the threshold value.
  • Such a threshold value check can consist of a simple threshold value analysis of only one, two or even all three acceleration signals.
  • the signals are expediently logarithmically recorded and / or an integral is formed over time with subsequent integral evaluation, in order in this way to arrive at more reliable statements about a crash course.
  • the sensitivity axis w of the acceleration sensor 13 Since the sensitivity axis w of the acceleration sensor 13 is inclined by 45 ° with respect to the vehicle transverse axis B-B ', ie by 135 ° with respect to the sensitivity axis x of the XY acceleration sensor, its output signal a w must be multiplied by a suitable correction value K ".
  • the correction value K w can be calculated from the sine value of the angle of inclination. In the selected example, the following applies
  • FIG. 3 shows a further alternative sensor alignment of the arrangement corresponding to FIG. 2.
  • a further acceleration sensor 12 is again provided with a sensitivity axis v inclined at 45 ° to the vehicle longitudinal axis AA '. Since the sensitivity axis v of the acceleration sensor 12 is inclined by 45 ° with respect to the vehicle longitudinal axis A-A ', ie by 225 ° with respect to the sensitivity axis x of the XY acceleration sensor, its output signal must be multiplied by a suitable correction value K v .
  • the correction value K v can be calculated from the sine value of the angle of inclination. In the selected example, the following applies

Abstract

L'invention concerne un procédé permettant de vérifier la fonction d'un système de commande pour moyens de protection pour passagers d'une automobile. Selon ce procédé, une vérification automatique est effectuée dans le dispositif de détection comportant trois capteurs d'accélération. Les masses sismiques des capteurs d'accélération sont déplacées de manière capacitive avec une force correspondant à une valeur comprise approximativement entre 10 et 15G. Une somme pondérée est dérivée des signaux de sortie. Cette somme doit s'élever à la valeur zéro afin qu'un signal de libération puisse être fourni pour un signal d'amorce du moyen de protection des passagers d'une automobile.
PCT/DE2000/000088 1999-01-12 2000-01-12 Procede pour verifier la fonction d'un systeme de commande pour moyens de protection des passagers dans une automobile WO2000041917A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020017008848A KR20010101502A (ko) 1999-01-12 2000-01-12 차량의 승객 보호를 위한 제어 시스템의 기능 점검을 위한방법
EP00903518A EP1149004B1 (fr) 1999-01-12 2000-01-12 Procede pour verifier la fonction d'un systeme de commande pour moyens de protection des passagers dans une automobile
DE50005983T DE50005983D1 (de) 1999-01-12 2000-01-12 Verfahren zur funktionsüberprüfung einer steueranordnung für insassenschutzmittel in einem kraftfahrzeug
JP2000593505A JP2002534699A (ja) 1999-01-12 2000-01-12 車両の乗員保護手段の制御装置の機能を検査する方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19900844 1999-01-12
DE19900844.2 1999-01-12

Publications (1)

Publication Number Publication Date
WO2000041917A1 true WO2000041917A1 (fr) 2000-07-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/000088 WO2000041917A1 (fr) 1999-01-12 2000-01-12 Procede pour verifier la fonction d'un systeme de commande pour moyens de protection des passagers dans une automobile

Country Status (5)

Country Link
EP (1) EP1149004B1 (fr)
JP (1) JP2002534699A (fr)
KR (1) KR20010101502A (fr)
DE (1) DE50005983D1 (fr)
WO (1) WO2000041917A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016169A1 (fr) * 2000-08-22 2002-02-28 Siemens Aktiengesellschaft Circuit de commande pour un dispositif de protection des occupants d'un vehicule a moteur et procede associe permettant de faire fonctionner ledit circuit
DE10308881B3 (de) * 2003-02-28 2004-09-02 Siemens Ag Steueranordnung und Verfahren zur Funktionsüberprüfung einer derartigen Steueranordnung für Insassenschutzmittel in einem Kraftfahrzeug
WO2005035318A1 (fr) * 2003-10-09 2005-04-21 Conti Temic Microelectronic Gmbh Dispositif pour declencher un systeme de securite dans un vehicule
US7369517B2 (en) 2002-02-07 2008-05-06 Siemens Aktiengesellschaft Method for downloading data in a radio communications system
EP1957991A1 (fr) * 2005-09-16 2008-08-20 VTI Technologies Oy Procede de mesure micromecanique d'acceleration et capteur d'acceleration micromecanique
US9376077B2 (en) 2010-10-29 2016-06-28 Dainese S.P.A. Apparatuses, system and process for the personal protection
US9505366B2 (en) 2010-10-29 2016-11-29 Dainese S.P.A. Apparatuses, system and process for detecting accidents
DE102008002429B4 (de) 2008-06-13 2019-06-13 Robert Bosch Gmbh Verfahren und Steuergerät zur Ansteuerung von Personenschutzmitteln für ein Fahrzeug
WO2019179840A3 (fr) * 2018-03-21 2020-04-09 Robert Bosch Gmbh Système de capteurs pour un véhicule et procédé de contrôle d'un capteur
DE102015220823B4 (de) 2015-10-26 2024-01-25 Robert Bosch Gmbh Verfahren zum Erkennen einer Fehlfunktion zumindest eines Sensors zum Steuern einer Rückhaltevorrichtung eines Fahrzeugs, Steuergerät und Fahrzeug

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7231825B2 (en) 2004-11-08 2007-06-19 Sauer-Danfoss Inc. Accelerometer based tilt sensor and method for using same
US7578193B2 (en) 2006-06-28 2009-08-25 Sauer-Danfoss Inc. Method of measuring vibration on a device
DE102006047521A1 (de) * 2006-10-07 2008-04-10 Conti Temic Microelectronic Gmbh Verfahren zur Funktionsprüfung einer Beschleunigungssensoreinheit
CN109459585B (zh) * 2018-10-25 2021-02-09 北京航天计量测试技术研究所 一种加速度计零位偏置修正方法

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US4933570A (en) 1987-02-24 1990-06-12 Siemens Aktiengesellschaft Circuit arrangement for triggering a safety system
JPH04315058A (ja) * 1991-04-12 1992-11-06 Toyota Motor Corp 移動物体の加速度検出装置の検出異常判定装置
EP0419455B1 (fr) 1988-06-09 1993-03-17 Robert Bosch Gmbh Appareil et procede de declenchement d'un systeme de securite pour la protection d'un occupant d'un vehicule
WO1998019171A1 (fr) * 1996-10-16 1998-05-07 Automotive Systems Laboratory, Inc. Systeme de detection de collisions pour vehicules
DE19645952A1 (de) 1996-11-07 1998-05-20 Siemens Ag Steueranordnung für ein Rückhaltemittel in einem Kraftfahrzeug

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US4933570A (en) 1987-02-24 1990-06-12 Siemens Aktiengesellschaft Circuit arrangement for triggering a safety system
EP0419455B1 (fr) 1988-06-09 1993-03-17 Robert Bosch Gmbh Appareil et procede de declenchement d'un systeme de securite pour la protection d'un occupant d'un vehicule
JPH04315058A (ja) * 1991-04-12 1992-11-06 Toyota Motor Corp 移動物体の加速度検出装置の検出異常判定装置
WO1998019171A1 (fr) * 1996-10-16 1998-05-07 Automotive Systems Laboratory, Inc. Systeme de detection de collisions pour vehicules
DE19645952A1 (de) 1996-11-07 1998-05-20 Siemens Ag Steueranordnung für ein Rückhaltemittel in einem Kraftfahrzeug

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6859706B1 (en) 2000-08-22 2005-02-22 Siemens Aktiengesellschaft Control circuit for a passenger protection device in a motor vehicle and corresponding method of operation
WO2002016169A1 (fr) * 2000-08-22 2002-02-28 Siemens Aktiengesellschaft Circuit de commande pour un dispositif de protection des occupants d'un vehicule a moteur et procede associe permettant de faire fonctionner ledit circuit
US8543080B2 (en) 2002-02-07 2013-09-24 Siemens Aktiengesellschaft Method of downloading data in a radio communications system
US7369517B2 (en) 2002-02-07 2008-05-06 Siemens Aktiengesellschaft Method for downloading data in a radio communications system
DE10308881B3 (de) * 2003-02-28 2004-09-02 Siemens Ag Steueranordnung und Verfahren zur Funktionsüberprüfung einer derartigen Steueranordnung für Insassenschutzmittel in einem Kraftfahrzeug
WO2004076242A1 (fr) * 2003-02-28 2004-09-10 Siemens Aktiengesellschaft Dispositif de commande et procede de controle du fonctionnement d'un tel dispositif de commande destine a la protection des occupants d'un vehicule
US7039513B2 (en) 2003-02-28 2006-05-02 Siemens Aktiengesellschaft Control arrangement and method for testing the operation of a control arrangement of this type for occupant protection means in a motor vehicle
CN1310783C (zh) * 2003-02-28 2007-04-18 西门子公司 用于汽车中乘客保护装置的控制装置和对其进行功能检验的方法
WO2005035318A1 (fr) * 2003-10-09 2005-04-21 Conti Temic Microelectronic Gmbh Dispositif pour declencher un systeme de securite dans un vehicule
EP1957991A4 (fr) * 2005-09-16 2011-12-28 Vti Technologies Oy Procede de mesure micromecanique d'acceleration et capteur d'acceleration micromecanique
EP2587266A1 (fr) * 2005-09-16 2013-05-01 Murata Electronics Oy Capteur d'accélération capacitif et son procédé de fabrication
KR101300478B1 (ko) 2005-09-16 2013-09-02 무라타 일렉트로닉스 오와이 마이크로기계 가속 측정 방법 및 마이크로기계 가속 센서
EP1957991A1 (fr) * 2005-09-16 2008-08-20 VTI Technologies Oy Procede de mesure micromecanique d'acceleration et capteur d'acceleration micromecanique
DE102008002429B4 (de) 2008-06-13 2019-06-13 Robert Bosch Gmbh Verfahren und Steuergerät zur Ansteuerung von Personenschutzmitteln für ein Fahrzeug
US9376077B2 (en) 2010-10-29 2016-06-28 Dainese S.P.A. Apparatuses, system and process for the personal protection
US9505366B2 (en) 2010-10-29 2016-11-29 Dainese S.P.A. Apparatuses, system and process for detecting accidents
DE102015220823B4 (de) 2015-10-26 2024-01-25 Robert Bosch Gmbh Verfahren zum Erkennen einer Fehlfunktion zumindest eines Sensors zum Steuern einer Rückhaltevorrichtung eines Fahrzeugs, Steuergerät und Fahrzeug
WO2019179840A3 (fr) * 2018-03-21 2020-04-09 Robert Bosch Gmbh Système de capteurs pour un véhicule et procédé de contrôle d'un capteur
US11358604B2 (en) 2018-03-21 2022-06-14 Robert Bosch Gmbh Sensor system for a vehicle and method for monitoring a sensor

Also Published As

Publication number Publication date
KR20010101502A (ko) 2001-11-14
DE50005983D1 (de) 2004-05-13
JP2002534699A (ja) 2002-10-15
EP1149004B1 (fr) 2004-04-07
EP1149004A1 (fr) 2001-10-31

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